Example notes

notes

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-/home/turth/Documents/zet

notes/example.org

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+#+TITLE: Example Notes
+#+AUTHOR: Org Web Adapter Stuff
+
+* Today
+- Build a tiny server to browse Org files.
+- Make sure it works on mobile.
+
+* Ideas
+** Reader Mode
+Show a clean layout with headings and content.
+
+** Next Step
+Add editing endpoints and save-back support.
+Related list: [[file:to_watch.org][To Watch]]
+Related by ID: [[id:f2db82e0-c545-40fe-9458-55f8fe1bcb4b][To Watch (ID)]]
+
+* Scratch
+This paragraph demonstrates normal text.
+A second line stays as plain text for now.

notes/example_01_foundations.org

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+:PROPERTIES:
+:ID:       2e8a8baf-7a15-4e6f-97d2-7f93e73e0101
+:END:
+#+TITLE: Foundations
+#+CREATED: [2026-02-01 Sun 09:00]
+
+* Foundations
+This note introduces the set.
+Math: $a^2 + b^2 = c^2$.
+
+Links:
+- [[file:example_02_calculus.org][Calculus Basics]]
+- [[file:example_03_linear_algebra.org][Linear Algebra]]
+- [[id:2e8a8baf-7a15-4e6f-97d2-7f93e73e0112][Review Checklist]]

notes/example_02_calculus.org

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+:PROPERTIES:
+:ID:       2e8a8baf-7a15-4e6f-97d2-7f93e73e0102
+:END:
+#+TITLE: Calculus Basics
+#+CREATED: [2026-02-01 Sun 09:20]
+
+* Calculus Basics
+Math: $\frac{d}{dx}x^n = nx^{n-1}$.
+
+Links:
+- [[file:example_04_series.org][Series and Convergence]]
+- [[file:example_08_probability.org][Probability]]
+- [[file:example_01_foundations.org][Foundations]]

notes/example_03_linear_algebra.org

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+:PROPERTIES:
+:ID:       2e8a8baf-7a15-4e6f-97d2-7f93e73e0103
+:END:
+#+TITLE: Linear Algebra
+#+CREATED: [2026-02-01 Sun 09:40]
+
+* Linear Algebra
+Math: $A\vec{x}=\vec{b}$ and $\det(A) \neq 0$.
+
+Links:
+- [[file:example_05_eigenvalues.org][Eigenvalues]]
+- [[file:example_09_graphs.org][Graph Models]]
+- [[id:2e8a8baf-7a15-4e6f-97d2-7f93e73e0101][Foundations by ID]]

notes/example_04_series.org

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+:PROPERTIES:
+:ID:       2e8a8baf-7a15-4e6f-97d2-7f93e73e0104
+:END:
+#+TITLE: Series and Convergence
+#+CREATED: [2026-02-01 Sun 10:00]
+
+* Series and Convergence
+Math: $\sum_{k=0}^{\infty} r^k = \frac{1}{1-r}$ for $|r|<1$.
+
+Links:
+- [[file:example_02_calculus.org][Calculus Basics]]
+- [[file:example_06_optimization.org][Optimization]]
+- [[file:example_10_physics_notes.org][Physics Notes]]

notes/example_05_eigenvalues.org

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+:PROPERTIES:
+:ID:       2e8a8baf-7a15-4e6f-97d2-7f93e73e0105
+:END:
+#+TITLE: Eigenvalues
+#+CREATED: [2026-02-01 Sun 10:20]
+
+* Eigenvalues
+Math: $A\vec{v}=\lambda\vec{v}$.
+
+Links:
+- [[file:example_03_linear_algebra.org][Linear Algebra]]
+- [[file:example_06_optimization.org][Optimization]]
+- [[file:example_11_machine_learning.org][Machine Learning]]

notes/example_06_optimization.org

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+:PROPERTIES:
+:ID:       2e8a8baf-7a15-4e6f-97d2-7f93e73e0106
+:END:
+#+TITLE: Optimization
+#+CREATED: [2026-02-01 Sun 10:40]
+
+* Optimization
+Math: $\nabla f(x)=0$ at critical points.
+
+Links:
+- [[file:example_05_eigenvalues.org][Eigenvalues]]
+- [[file:example_11_machine_learning.org][Machine Learning]]
+- [[file:example_12_review_checklist.org][Review Checklist]]

notes/example_07_number_theory.org

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+:PROPERTIES:
+:ID:       2e8a8baf-7a15-4e6f-97d2-7f93e73e0107
+:END:
+#+TITLE: Number Theory
+#+CREATED: [2026-02-01 Sun 11:00]
+
+* Number Theory
+Math: $\gcd(a,b)$ and $a \equiv b \pmod n$.
+
+Links:
+- [[file:example_01_foundations.org][Foundations]]
+- [[file:example_08_probability.org][Probability]]
+- [[file:example_09_graphs.org][Graph Models]]

notes/example_08_probability.org

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+:PROPERTIES:
+:ID:       2e8a8baf-7a15-4e6f-97d2-7f93e73e0108
+:END:
+#+TITLE: Probability
+#+CREATED: [2026-02-01 Sun 11:20]
+
+* Probability
+Math: $P(A \mid B)=\frac{P(A\cap B)}{P(B)}$.
+
+Links:
+- [[file:example_10_physics_notes.org][Physics Notes]]
+- [[file:example_11_machine_learning.org][Machine Learning]]
+- [[id:2e8a8baf-7a15-4e6f-97d2-7f93e73e0107][Number Theory by ID]]

notes/example_09_graphs.org

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+:PROPERTIES:
+:ID:       2e8a8baf-7a15-4e6f-97d2-7f93e73e0109
+:END:
+#+TITLE: Graph Models
+#+CREATED: [2026-02-01 Sun 11:40]
+
+* Graph Models
+Math: $|E| \leq \binom{|V|}{2}$ for simple undirected graphs.
+
+Links:
+- [[file:example_03_linear_algebra.org][Linear Algebra]]
+- [[file:example_12_review_checklist.org][Review Checklist]]
+- [[file:example_08_probability.org][Probability]]

notes/example_10_physics_notes.org

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+:PROPERTIES:
+:ID:       2e8a8baf-7a15-4e6f-97d2-7f93e73e0110
+:END:
+#+TITLE: Physics Notes
+#+CREATED: [2026-02-01 Sun 12:00]
+
+* Physics Notes
+Math: $F=ma$ and $E=mc^2$.
+
+Links:
+- [[file:example_04_series.org][Series and Convergence]]
+- [[file:example_08_probability.org][Probability]]
+- [[file:example_11_machine_learning.org][Machine Learning]]

notes/example_11_machine_learning.org

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+:PROPERTIES:
+:ID:       2e8a8baf-7a15-4e6f-97d2-7f93e73e0111
+:END:
+#+TITLE: Machine Learning
+#+CREATED: [2026-02-01 Sun 12:20]
+
+* Machine Learning
+Math: $\hat{y}=\sigma(\mathbf{w}^T\mathbf{x}+b)$.
+
+Links:
+- [[file:example_06_optimization.org][Optimization]]
+- [[file:example_05_eigenvalues.org][Eigenvalues]]
+- [[file:example_12_review_checklist.org][Review Checklist]]

notes/example_12_review_checklist.org

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+:PROPERTIES:
+:ID:       2e8a8baf-7a15-4e6f-97d2-7f93e73e0112
+:END:
+#+TITLE: Review Checklist
+#+CREATED: [2026-02-01 Sun 12:40]
+
+* Review Checklist
+Math: $\int_0^1 x^2\,dx = \frac{1}{3}$.
+
+Links:
+- [[file:example_01_foundations.org][Foundations]]
+- [[file:example_09_graphs.org][Graph Models]]
+- [[id:2e8a8baf-7a15-4e6f-97d2-7f93e73e0111][Machine Learning by ID]]